广东电力
廣東電力
엄동전력
GUANGDONG ELECTRIC POWER
2014年
9期
37-41,48
,共6页
严以臻%曹良%陶旭强%简淦杨%刘明波
嚴以臻%曹良%陶旭彊%簡淦楊%劉明波
엄이진%조량%도욱강%간감양%류명파
高压直流%接地极%变压器中性点%直流偏磁%抑制措施
高壓直流%接地極%變壓器中性點%直流偏磁%抑製措施
고압직류%접지겁%변압기중성점%직류편자%억제조시
high voltage direct current%grounding electrode%transformer neutral point%direct current bias magnetic%re-striction measure
为分析±500 kV政平换流站直流接地极对江苏省常州电网的影响，首先分析直流电流对不同类型变压器的影响程度以及对接地网加速腐蚀的影响程度，根据仿真分析以及变电站的历史实测数据，进行了政平换流站对江苏省500 kV和220 kV变电站中性点接地的运行变压器的影响分析，结合常州南部电网规划，提出抑制村前变电站直流影响的措施，并给出目前变电站应对直流偏磁问题的建议。
為分析±500 kV政平換流站直流接地極對江囌省常州電網的影響，首先分析直流電流對不同類型變壓器的影響程度以及對接地網加速腐蝕的影響程度，根據倣真分析以及變電站的歷史實測數據，進行瞭政平換流站對江囌省500 kV和220 kV變電站中性點接地的運行變壓器的影響分析，結閤常州南部電網規劃，提齣抑製村前變電站直流影響的措施，併給齣目前變電站應對直流偏磁問題的建議。
위분석±500 kV정평환류참직류접지겁대강소성상주전망적영향，수선분석직류전류대불동류형변압기적영향정도이급대접지망가속부식적영향정도，근거방진분석이급변전참적역사실측수거，진행료정평환류참대강소성500 kV화220 kV변전참중성점접지적운행변압기적영향분석，결합상주남부전망규화，제출억제촌전변전참직류영향적조시，병급출목전변전참응대직류편자문제적건의。
In order to analyze impact on Jiangsu Changzhou power grid by direct current grounding electrode in ±500 kV Zhengping convertor station,impact degrees on different typed transformers and speeding up erosion of grounding grid by direct current were analyzed firstly. According to simulation analysis and historical measuring data in the substation,impact analysis on neutral point grounding running transformers in Jiangsu 500 kV and 220 kV substation by Zhengping convertor station was carried out. Combining south part power grid programming in Changzhou,measures to restrict impact of direct current in Cunqian substation were proposed and suggestions on direct current bias magnetic in present substation were pro-posed.
